Most of us have gone a bit overboard on the local beer or spirits when in another country. My worst experience was in Sydney, where my two friends and I found ourselves with a 4L box of wine that we bought for $10 and refused to haul any further on our way up the coast. We had one night to drink it, and it just happened to be Mardi Gras.We finished it all right. But most of my share ended up coming up the way it went in, if you get my drift. Running through the halls of the hostel, trying desperately to get my key card to open the door to the communal bathrooms before spewing up last night’s ill-advised double serving of fries rates up there as one of the worst days of my life. Make that two days.

Here’s what I consider to be the worst places to be hungover. Feel free to add your own in the comments:

On a boat off the coast of … well … anywhere: After one tequila-fueled night in Puerto Vallarta, my friends and I had to take a booze cruise or forfeit our deposit. So we went and oh my goodness, I’ve never been so seasick in my life. Actually, I’ve never been seasick period, besides that day. The Great Barrier Reef off the coast of Cairns is also notoriously choppy — one girl on a boat trip I went on had to be air-lifted back to shore!

In a Tuk Tuk: Bangkok is beautiful but it’s also hot and polluted and I can see why people splurge on cabs — breathing in the exhaust is enough to make anyone hurl, whether they’re already feeling a bit queasy or not.

In transit: Not only will exhaustion make you prone to missing your bus/flight/train/ferry but the motion/turbulence/rocking is bound to make you feel a bit ill. Plus, those miniature bathrooms leave something to be desired when you’re feeling nauseous.

Locked out of your hostel: Many hostels have lock-out rules during the day so while you want nothing more than to sleep it off, you’ll have to do it elsewhere. I recommend a nearby park if it’s nice out. If it’s not, you might be outta luck.

Outside when it’s hot: Laying on the beach with a bunch of bottled water is an okay way to recover, but there’s a fine line between being tolerably hot and being unbearably hot. Insane heat is uncomfortable when you’re feeling your best, so it’s really, really brutal when you’re feeling your worst.

So while we don’t ever really plan to be hungover, next time you’re tempted to say ‘cheers’ a few too many times, look at your surroundings. Must-haves for the hangover are air-conditioning, a decent bed that you can crash in for as long as you want, a supply of water and aspirin, and good friends who will bring you greasy food when you’re too sick to move.